Burner



Sept. 30 v, '1924.

l 1,510,024 A. WARNER BURNER Filed Nov. 2, 1923 23 2o 25 27 v 9 zum" @amw J w ,1,1 20 `\24 a /3 J6 f Z' ABQ. 7.

Patented Sept. lill, litt..

AXEL VJ'RNER, OF GHCAGO, ILLINOIS.

BUR-NER.

Application led November 2, 1923.

.T0 all whom t may concern:

Be it known that l, AXEL llllnnnnn, a citi Zen of the Unit-ed States,and a resident of Chicago, @ook County, and State of lllinois:` haveinvented certain new and useful linprovenients in Burners, of which thefollowing is declared to be a full, clear, and exact description.

This invention relates to burners, and in its present forni has beendesigned for use as a kerosene burner. yl'he principal object of thisinvention is to `provide a burner of improved construction., capable ofproduicW ing an intensely hot, blue flame, andvat the saine tinieeliminating the usual noise or roaring sound that accompanies theburning of kerosene in a hydrocarbon burner.

lVith these and other objects in view, this invention consists in theseveral novel features hereinafter described and claimed.

rllhe invention is clearly illustrated in the accompanying drawing, inwhich Fig. 1 is a central, vertical section. through a burner embodyinga sirnple forni of the present invention; Fig. 2 is a plan thereof; Fig,3 is view looking at the bottoni of a spreader plate forming part of theburner, and Fig. 4 is side elevation of said plate.

Referring to said drawing, which illustrates one embodiment of theinvention, the reference character 5, designates a burner tube arrangedto be connected to a fuel supply pipe (i, as for instance by a pipecoupling 7. rlhe pipe G leads from a fuel tank (not shown) in which iscontained kerosene or other hydro-carbon liquid fuel, under pressure, asis well understood.

-The burner tube has a. relatively thin cylindrical shell or wall 8,which is shouldered near its upper end, as at 9 and tapers upwardly asshown at 10. The end wall 11 of the` burner tube is relatively thick ascoin-- pared with the s iell portion 8 and contains a central dischargeduct 11a of exceedingly srnall diaineter, preferably formed by boring ahole with a line drill, [its illustra-tive ofthe size of the orifice,one having a diameter of twelve-thousandths of an inch, has been foundto operate successfully. A wire gauge filter 30, is preferably containedin the hollow of the burner tube to filter out any solid or foreignrnatter from the kerosene Secured upon the upper end of the burner tube,and spaced therefrom, is a burner pan 12, which is formed with bottoni13 having an upturned marginal flange 144 The upf Serial No. 672,255.

per face 13n4 of the bottom 13 is ilat and sinooth, and a centralopening 15 is formed in said bot-tom through which the generated passes,The pan 12 is forined with two Y wnwardly converging arnis 16, whichjoin with a ring or band 1'? that slips upon the tapered upper end 1()of the burner tube and connects the burner pan with it. Air passages(one of which is shown at 18) are located between the arms 16, andadniit oxygen through the opening 15, to the space directly above theburner pan.

Resting on the face 13et of the burner pan bottoni is a. spreader plate19, whichl is of less diameter than the internal diameter of the flange14, to leave an annular space 2O therebetween, and said spreader plateis formed with lugs 21 arranged circumferentially along the lower facethereof, and spaced apart to leave notches or ypassages 22 therebetweenfor the escape of the burn ing vapor. The lower face 23 of the spreaderpan is flat and parallel with the upper face 13ZL of the bottoni 18 ofthe spreader pan. l have found from actual experiments that the properheight of the notches or passages 22 is about live sixty-fourths of aninch, to bring `about the best results, because if the notches arehigher, a roaring sound is produced, and if the notches are lower aclicking action results. In order to centralise the spreader plate andspace it from the annular flange 14C, three or more lugs are extendedbeyond the plate to the flange, as at 24. To prevent warping of theplate, l prefer to forni radially eX- tending ribs 25 on its upper sidethat eX* tend from a central boss 26 to an annular rib 27, formed on theupper side and at the margin of the spreader plate.

ln accordance with the usual practice, a priming cup (not shown) isemployed for receiving alcohol or other volatile fluid which is ignitedto pre-heat the parts and gasify the kerosene or other liquid fuel inthe top of the burner tube. The fuel (under pressure) is then turned onand the gasified fuel discharged through the duct 11?L in a fine jet orstreain against the bottom of the spreader pan where it is spreadoutwards evenly in all radial directions, pass ing through the notches22 and being deflected upward by the annular flange 14. The gaseous fuelis ignited and burns with a blue, intensely hot flame, without producingany appreciable noise or roaring sound,

The heat generated in thevburner pan is Conducted to the burner tube bythe arms 16, and gasifies the liquid fuel in the upper end thereof.

From my experiments I found it necessary, in order to obtain the bestresults, `-to provide al relatively long, discharge duct in the burnertube of exceedingly ksmall diameter, practically a capillary duct, andlocated in position so as to 'direct the fine jet or stream at thecenter of t-he spreader plate, in order that the fuel may be spreadevenly in all radial directions from the cen ter of the plate. I alsofind that unless the height of the notches or passages is liniitedclosely to five sixtyi fourths of an inch, a roaring sound will be,produced if the notches are appreciably higher, and a choking action'will result if'4 they aremade lower. I `also find that it is Vessentialthat the adjacent faces of the spreader plate and burner pan be madeflat and parallel.

The burner is capable of use in stoves, heaters, furnaces, and in factin many other devices where an intensely hot flame is desired. l/V iththis burner the fuel is economiZed and ordinary commercial kerosene maybe used effectively as the fuel.

More or less yvariation of the exact details of construction is possiblewithout departing from the spirit of this invention; I desire,therefore, not to limit myself to the exact form of 4the constructionshown and described, but intend, in the following claims to point outall ofthe invention disclosed herein.

I 'claim as new, and desire to secure by Letters Patent:

l. A burner comprising, in combination, a burner tube having a thin sidewall and a relatively thick top wall, the top wall be ing formed with acentrally' disposed, relatively long, capillary discharge duct, acentrally apertured burner pan secured upon said burner tube, and havingan upturned marginal flange, the upper face of said burner pan beingflat, and a spreader plate above and spaced relatively close to saidburner pan, the spreader plate being of less diam eter than the internaldiameter of said flange, and its lower face being flat and parallel Withthe upper llat face of the burner pan, the flat upper face of the burnerpan and lower flat face of the spreader plate forming therebetween arelatively thin hori- '/,ontal passage of uniform thickness throughoutand the space between the edge of the spreader' plate and flange of theburner pan being relatively wideI as compared with the thickness of saidflat passage.

2. A burner comprising, in combination, a burner tube having a thin sidewall and a relatively thick top wall. the top wall be ing formed with acentrally disposed, rela* tively long, capillary discharge duct. aceutrally apertured burner pan secured upon said burner tube` and haringan upturned marginal flange, the upper face oi' said burner pan beinglflat, and a spreader plate above said burner pan, and of less diameterthan the internal dian'reter of said flange, said spreader plate beingformed with a row ol' spaced lugs on its lower face, arranged eineumferentially about the same, and resting on the bottom of saidspreader pan, the N spaces between said lugs being relatively low, theHat upper face of the burner pan and lower flat face of the spreaderplate forming therebetween a relatively thin horizontal passage ofuniform thickness thrmlglr out and the space between the edge ol thespreader plate and flange of the burner pan being relatively wide ascompared with the thickness of said flat passage.

A burner comprising, in combination, a burner 'tube having a thin sidewall and a relatively thick top wall, the top wall being formed with acentrally disposed, relatively long` apillary discharge duet, acentrally apertured burner pan having downwardly converging armsterminating in a band secured upon said burner lube, said burner paubeing formed with an uplurnezl marginal' flange, and the upper face oilthe bottom of said burner pan being flat, and a spreader plate abovesaid burner pun 'and ol' less diameter than the internal diameter o l'said flange, the lower face of said spreader plate being llat,vandformed with a marginal row of spaced lugs resting on the bottom of theburner pan, the spaces between said lugs being relatively low, the' flatupper face of the burner pan and lower flat :face of the spreader plateforming therebetween a rela` tively thin horizontal passage of uniformthickness throughout and the space between the edge of the spreaderplate and flange of the burner pan being relatively wide as cont pared'with the thickness of said llat passaI e.

AXEL WAR-NER.

